                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}\\
                    &\multicolumn{1}{c}{Heat pump}&\multicolumn{1}{c}{Electric}&\multicolumn{1}{c}{Natural gas}&\multicolumn{1}{c}{Heating oil}&\multicolumn{1}{c}{Propane}\\
\hline
ln(other cost) - ln(col. cost)&       0.326\sym{***}&       0.245\sym{*}  &       0.395\sym{***}&       0.000         &       0.000         \\
                    &     (0.076)         &     (0.101)         &     (0.056)         &     (0.000)         &     (0.006)         \\
[1em]
\$30-59k             &      -0.025         &      -0.098\sym{*}  &       0.123\sym{**} &       0.003         &       0.010         \\
                    &     (0.043)         &     (0.049)         &     (0.043)         &     (0.004)         &     (0.017)         \\
[1em]
\$60-99k             &      -0.075         &      -0.036         &       0.143\sym{***}&       0.002         &      -0.009         \\
                    &     (0.041)         &     (0.048)         &     (0.041)         &     (0.004)         &     (0.015)         \\
[1em]
\$100k+              &      -0.050         &      -0.106\sym{*}  &       0.212\sym{***}&      -0.005         &      -0.021         \\
                    &     (0.040)         &     (0.046)         &     (0.040)         &     (0.003)         &     (0.014)         \\
[1em]
Black               &      -0.006         &       0.062         &      -0.045         &       0.005         &      -0.017\sym{*}  \\
                    &     (0.046)         &     (0.053)         &     (0.047)         &     (0.006)         &     (0.008)         \\
[1em]
Nat.Am.             &      -0.231\sym{***}&       0.208         &       0.025         &      -0.001         &      -0.023         \\
                    &     (0.047)         &     (0.140)         &     (0.141)         &     (0.002)         &     (0.017)         \\
[1em]
Asian               &      -0.006         &      -0.005         &      -0.000         &       0.011         &      -0.000         \\
                    &     (0.046)         &     (0.050)         &     (0.048)         &     (0.012)         &     (0.020)         \\
[1em]
Other               &      -0.081         &       0.033         &       0.013         &       0.001         &       0.016         \\
                    &     (0.059)         &     (0.081)         &     (0.075)         &     (0.002)         &     (0.027)         \\
[1em]
Owner               &      -0.026         &      -0.289\sym{***}&       0.292\sym{***}&       0.006         &       0.021\sym{*}  \\
                    &     (0.028)         &     (0.032)         &     (0.030)         &     (0.004)         &     (0.010)         \\
[1em]
Rural               &       0.073\sym{**} &       0.050         &      -0.241\sym{***}&       0.000         &       0.096\sym{***}\\
                    &     (0.027)         &     (0.027)         &     (0.026)         &     (0.002)         &     (0.015)         \\
[1em]
Northeast           &       0.002         &       0.000         &      -0.069         &       0.019         &       0.068\sym{*}  \\
                    &     (0.035)         &     (0.040)         &     (0.047)         &     (0.010)         &     (0.027)         \\
[1em]
South               &       0.056         &       0.068         &      -0.143\sym{***}&      -0.005         &      -0.063\sym{**} \\
                    &     (0.048)         &     (0.042)         &     (0.039)         &     (0.004)         &     (0.019)         \\
[1em]
West                &      -0.109\sym{**} &       0.043         &      -0.022         &      -0.004         &      -0.060\sym{**} \\
                    &     (0.040)         &     (0.039)         &     (0.040)         &     (0.004)         &     (0.019)         \\
\hline
Observations        &        1670         &        1670         &        1670         &        1670         &        1670         \\
